New research suggests that heat stress increases the occurrence of same-sex sexual interactions between male burying ...

Why do men have an Adam's apple? A biologist explains the puberty hormone surge behind it, the sexual-selection theory and ...

Men have nipples because embryos are sexually neutral for their first six weeks. Here's the developmental blueprint behind one of anatomy's most overlooked mysteries.

Researchers tested liraglutide in stress models. The GLP-1 therapy reduced depression-like behaviors via gut microbiome ...

Whether it's investigating the financials of Elon Musk's pro-Trump PAC or producing our latest documentary, 'The A Word', which shines a light on the American women fighting for reproductive rights, ...

Genes associated with male reproductive biology appear to be under relaxed selective constraint in a primate species with low sperm competition.

Depending on the type of intersex variation someone has, it could alter their chromosome makeup, genital appearance, hormonal balance, and more. Share on Pinterest Maskot/Getty Images We’re born with ...

The idea that octopuses might be aliens emerged from the theory of panspermia (Stelele 2018), according to which life on Earth is not entirely of terrestrial ...

Research reveals men crave emotional connection from sex just as much as women. Misunderstanding this costs couples real ...

According to Lieberman, most major cities – including, ahem, San Francisco — had at least one brothel with male sex workers ...

Unregulated peptides sold for muscle gain and anti-ageing carry serious risks, and the evidence suggests women face the ...